Rolling-machine.



PATENTED PEB. 13, 1906.

A. MASION. ROLLING MACHINE.

APPLICATION FILED JAN.5,1905.

Lvyzaor Q2/Wt? No. 812,281. PATENTED FBB.13, 1906. A. MASION.

ROLLING MACHINE.

APPLICATION FILED JAN. 5, 1905.

2 SHEETS-SHEET 2.

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7% 714/ l E l MIA/LA UNITED srArns Anrignp MAsIoN, GENERALE DU ROLLING- Specification of Letters Patent.

Page Nr onnron.

MACHINE.

Patented Feb. 13, 1906.

Application filed January 5, 1905. Serial No. 239.756.

To all whom t may concern:

Beit known that I, ALFRED MAsIoN, a sublject of the King of Belgium, and a resident of Molenbeek, St. Jean, Belgium, have invented certain new and useful Improvements in Rolling-Machines, of which the following is a speciiication.

This invention has reference more especially to the manufacture of weldless chains by close coiling and rolling a bar of metal,

wherein a rolling-mill is used with circumferentially-grooved rolls of the kind described in the specification of the United States Patent No. 658,722, dated the 25th day of September, A. D. 1900, and illustrated in Figs. 1 and 2 of the drawings accompanying that specification,` but the invention may be applied to apparatus for similarly rolling analogous bodies; but it is presumed links are to be operated on. The aforesaid rolling-mill imparts circular cross-section to chain-links of square or rectangular section formed by the close coiling of a bar of metal, and the said rolling-mill comprises two compressingrolls, one of which is movable and is introduced. into the link to be rolled and then brought nearer to the other roll, which is stationary. Tangential rolls (the axes of which may be shifted) are used to limit the enlargement of the link and guide it during the rolling operation. The work cannot be well perl formed unless such an amount of metal be a sectional plan of a portion used as will insure powerful compression and to make up for inequalities in the metal and for losses which occur in heating it, these losses varying according to the way the heating-furnace is worked. The rolling opertion causes the excess of metal to pass between the two first-named rolls (when the one roll is almost in contact with the other roll) and form a bur, both above and below, around the rolled lin The ridges or burs thus formed have hitherto been removed by a milling-cutter revolving at high speed and brought into contact with the link while it revolves in the rolling-mill. This milling operation is slow and very costly on account of the milling-cutters soon losing their cutting edges while in contact with metal at high temperature. According to thisinvention the removal of the burs from the links is effected by improved means, as hereinafter described.

Figure l is a sectional elevation, and Fig. 2

of the rollingmill, the positionsof the movable roll A being shown in dotted and full lines, respectively, and B showing the stationary roll. The tangential rolls are marked C and D, respectively. Fig. 3 shows in vertical section the device applied to a roll. Fig. 4 is a similar view drawn to a larger scale. Figs. 5 and 6 are an elevation and a vertical section illustrating the said device and means for operating it.

The principle of the device consists in obtaining a shearing action by providing one of the tangential rolls or an additional roll with flat collars, which by coming sidewise into contact with the burs formed between the two rolls A and B will cutv them off. It is not practicable to use such liat collars on the grooved rolls to remove the burs while the rolling operation is taking place, as then the burs would be torn off as they are being formed, the debris thereof would pass between the rolls A and B, and be compressed and become embedded in the metal of the link and spoil it. It is of course possible to use a special grooved roll with flat collars, provided this roll be kept away from the link while it is being rolled; but in order to obtain good results the rolling-mill must have three external rolls in contact with the link and there is no room for a fourth roll and its gearing. In the apparatus constructed in accordance with this invention the usual grooved tangential rolls are in contact with the link during the rolling operation but one or more of these can be provided with fiat collars,which are brought into operative position after the rolling has been performedthat is, after the movable roll A has been moved away from the roll B land the burs are completely formed. To effect this, the apparatus shown in Figs. 3 and 4 consists of two circular flanged disks O and O, arranged round one of the rolls C and constituting what may be termed knives or shears which are, as shown in Fig. 4, kept away from the grooves of the roller, and consequently from the link S and the burs thereon while the rolling is proceeding; but they are brought nearer together when the rolling operation is finished and the burs are completely formed. Figs. 5 and 6 illustrate the apparatus, with means for operating it, the two knives or shears being in the position they assume when shearing has been effected-that is, flush with the edges of IOS l may be done in one revolution onlyof` the cir- 1 cular knives or shears, or thereabout.

The aforesaid device 1s ofcourse not confined to the precise application shown, as it the groove in the roll C. As each of the knives or shears O O is fixed (by means of screws, for example) to a collar E, which is connected by a groove-and-feather arrangel ment to the shaft F, on which is keyed the l can be mounted on a roll of other apparatus roll C, the said collars rotate with the shaft y for similarly rolling analogous bodies. If F and roll C, but can be moved up and down l pace should permit of it, a special roll, with on the shaft F while rotating. The vertical l at collars acting as knives or shears, may be movements of the collars E, and consequently used, the said roll of the knives or shears O O, are controlled by link only after the burs are formed, this spetwo pins Gr, engaging in peripheral grooves in cial roll acting in the same manner as the the collars E and controlled by levers II, opknives or shears in the arrangement illuserated by a screw V, with right and left hand trated;

threads, so that when one of the levers rises Having now particularly described and asthe other descends. During the rolling opcertained the nature of my said invention and eration the screw V is so turned that the knife in what manner the same is to be performed, or shear O is raised and the knife or shear O I declare that what I claim is# is lowered. Then the burs are completely 1. In a rolling-machine, the combination formed and the roll A is moved away from i with aroll, of knives or shears connected with the roll B, the screw V is rotated in a directhe roll to rotate therewith, and movable to tion such that the flat collars of the knives or l ward and from each other in the direction of shears O and O are moved ush with the l the axis of the roll, and means for simultaneedges of the groove of the roll C. In order ously adjusting the knives or shears` not to crush the burs7 it is advisable not to 2. In a rolling-machine, the combination bring the knives or shears toward each other with a roll, of a circular knife or shear conwhen they are above and below the burs, as nected with said roll, means for locking the is the case during the rolling operations shown shear to the roll to prevent independent roin Fig. 4; but after rolling the roll C is taken tation and to permit the shear to be adjusted off the link for a moment, so that the knives in the direction of the axis of the roll, and or shears instead of crushing the burs attack means for adjusting the knife or shear. them sidewise and shear them neatly off the In testimony whereof I have signed my surface of the link. The burs are then rename to this specification in the presence of moved without affecting the rotary mltlonlof two subscribing witnesses. the link which continues to rotate w e t re T burs are being sheared olf, and owing to their ALFRED MASIOD circular form the knives or shears continue to shear, so that the link is completely deprived of the burs both at top and bottom, and this 1 being brought nearer the Witnesses z GUsrAvE PIERRY, EMILE NUYBs. 

